Thread-measuring device



G. A. SCHICK.

THREAD MEASURING DEVICE.

APPLICATION FILED SEPT. 27. I9I7.

1,329,933. 7 Patented Feb. 3,1920.

2 SHEETS-SHEEI1- 6. A. scmcK.

THREAD MEASURING DEVICE.

APPLICATION FILED sEPT.27, 1911.

Patented Feb. 3, 1920.

2 SHEETS-SHEEI 2- device UNITED STATES PATENT OFFICE.

GEORGE A. SCH-ICE, 0 PHILADELPHIA, 1 1333213! IFS ml, .assienon; BY M'ns'ivn ASSIGNIYIENTS,.'1'O ADWEAR PROCESS SOLE 23EATHER IYIAGHINE 00., OF PHILADELPHIA; IENNSYLVAHHL A I THREADJ/iEesUR-ING nnvicn.

Specification of Letters Patent. i Pafinted 1920,

Application filed Septemberfiff, 1817. Serial No. 133,598.

To aZZ whom it may concern:

Be it known'that I, GEORGE A. Sermon,

a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented Thread-Measuring Devices, of Which the following is a specification.

One object of this invention is to provide a relatively'simple and positive device for periodically permitting the Withdrawal of a predetermined length of thread, Wire or similar body from a source of the same,- the arrangement of parts being such that after the desired amount of thread has been permitted to pass by reason of the operation of a suitable releasing device, it 'is so gripped that the serving of a further length is rendered impossible until said releasing 1118611 anisin is again operated.

A further desire to provide a device of the character described With means for periodically and automatically releasing the thread, as Well as a novel device whereby such release may be effected hyhand When desired,the arrangement being such that there can be no tension on that part of the thread passing to a sewing or other machine when it is being manually Withdrawn from the sunnly spoel.

. inether object of the inventlon 1S and releas a thread orlike body of material. Y

These objects and other advantageous ends I secure as hereinafter set forth, reference being had tothe accompanying drawings. in which, I

Figuresl and 2 are respectively aplan and aninverted plan of thread nieasuring constructed according to my invention; r

Finn

ce slioivn in Figs. 1 and 2;

111g." is a VfiltlCfll" section on thejlin'e e Fig.1; I

is a horizontal section on the line sired heating Inediuin such as steam. At 7 toprovide a ielatively snnple, compact and substantial device for intermittently gripping 8 is an elevation of one sine of the one end this structure has rotata'bly mount ed upon it a pair of eccentric gripping rollers i spindles 6 and 7, both of w'iiich are in the rin of screws havingheads countersunlcin the outer face of said rollers. I

it is to be noted that these rollers are eccen" ically mounted upon their supporting spindles and that the roller 4; has projecting from its top face a pin or screw 8 connected to one end of a coil spring 10 Whose second end is attached to an arm 11 projecting from one of the cornersof the casting 1' the arrangement being such that :said SP1} 10 at all times soacts on said roller as to tend to turn it on its spindle into gripping engagement with a shoe 12 rigidly fixed t on th su Jortinc' structure 1.

This shoe engages the cylindrical face of the roller l, preferably for about 90 of its curvature, so that athread or like body of aterialpassed between it and the shoe is pped by reason of the action of the ring-10. In order to automatically release said thread so as to permit it to be" drawn from a coil or spool for any desired purnose 1 form the casting 1 to provide a deWa-y and in this mount a horizontally ble plunger 13, having a longitudinally ijustabl'e puneh lilre end 14L, nornially en'- ga ing a shoulder 15 on the'roller 4 immediately adjacent the; pin 8. V I

The oppositeeinl of this plunger is forked to receive a roller 16 on which is operative a reciprecatory arm 17 periodically moved toward it by any suitable mechanism constituting no part of the present invention.

ward the roller el, causing its end 14: to act on the shoulder 15 so to turn said roller onits spindle in opposition to the spring 10, therelt-y moving its (11 '"ved surface away from the shoe land relea the thread x.

As shown in 2 and -l-pthe' pin8 projects from the under face ofithe roller 4 and l ends through a slot 18" below: the under free of the cast-ing l. On said face adarins projects beyond one end of \these g 1 'Whllt'li'S second arm 20in ttension of the pin 8 so that when said it love. is swung in'one direction on its fulc n1 p 21. this second armiengasges the 8,-forc1ng the roller at to turnon its and 15,. respectively journaled on c nt this slot is mounted 1 a lever 19; one.

o m of a hook, projects adjacent this supporting spindle in opposititon to the springlO and thereby release the thread be tween it and the shoe 12.

The spindle screw 7 supports the second .gripping roller 5 on the casting 1, preferably although by no means necessarily at or adjacent the level of the roller 4, and there is mou nted'on said casting a shoe 22, having a 90 circularly curved face engaging the curved face of said roller 5, against which it is held by a spring 23 acting between a pm 24 on said roller and a second pin 25 on the adjacent side of the casting 1. v

The inwardly projecting arm of the shoe 12 and the outwardly projecting'arm of the shoe 22 are respectively notched or forked at 26 and 27 toprovide guides for the thread :0

and in addition the extreme right hand corher of the casting 1 has mounted upon it a 27 and 26 and between the shoe 22 and the roller 5. If it be assumed that the right hand end ,of the thread shown in Fig. 1,

is in connection with a spool or other source of supply of the same, and its opposite end is run to a sewing or other machine in which it is utilized intermittently or contlnuously,

it is obvious "that tension exerted on said thread'in the direction of the arrow, will have no effect, since while the roller 5 tends to move away 7 from the shoe 22 so as to release said thread, the action of the latter I on the'roller l assis'ts the spring 10 in cansing said thread to be more tightly gripped against-the shoe 12. r I

I Thereafter when it is desired to feed the thread,- thearm 17 is operated to force the plunger 13 toward the roller 4 so that it acts against the shoulder 15 thereof and rotates said roller against the action of the spring 10 so as to release the thread as. The subsequent movement of the finger 30 from a' raised position to the position shown in Fig.

6, causes the thread to be drawn from the source thereof. in an am'ount'which may be exactly determined by governing the time during which the plunger 13 is retained in its'inner position and also by the stroke of the finger 30. When the desired amount of the thread has been taken from the source,

the return movementof the arm 17 permits the spring 10 to turn the roller 4 on its spindle 6, until it again grips the thread against the shoe 12, whereupon further passage of said thread into the device is absolutely prevented. Thereafter a sewing or other machine exerting tension on the thread may draw the length-pulledin by: the finger 30, between the roller 5 and the shoe 22, which however prevent tension being exerted on the thread in the sewing or other machine while the finger 30 is drawing it in from the spool.

If it be desired to draw a length of thread through the machine independently of the automatic measuring and'locking apparatus providedby the arm 17 and its associated parts, the manual turning of-the lever 19 in the direction of the arrow, Fig. 2, will bring the arm 20 thereof against the pin 8 and will turn the roller 4 against the spring 10, whereupon that part of the thread between the two rollers may be pulled out by the operator to any desired extent. The'tension due to said pull is not transmitted to the machine or device to which said'thread passes, since the spring 23 as well as the tension itself, maintains the roller 5 in gripping engagement with the thread passing over the shoe 22 as before." When the' desired length of thread has been drawn out between the rollers 24 and 5, the lever 19 is. released and by tension exerted upon the delivery end of the thread beyond the roller 5, the slack may be freely drawn out betweensaid roller and the shoe 22.

From the above description it will be.

noted that'both rollers with their cooperating shoes positively lock the thread from movement, and this action is dueto the fact that the tension exerted upon the thread lOC serves to increase the force gripping it so as V to prevent such movement. At. the same time measured lengths of the thread may be periodically delivered, depending in amount upon the time during which the roller 4 is held away from its shoe by the actionjof the arm 17 and the releasing plunger 13 as well as upon the length of stroke of iii the finger 30. When desired, any required 7 amount of slack may be drawn out between the gripping rollers and during such operation the roller 5 effectually prevents the drawing back of the thread from the machineto which it has been delivered/ having a curved portion; a shoe mounted to cooperate with said curved portion of the member; means tending to turn the member in one direction on its pivot to cause its curved portion to clamp athread against the shoe; "and means for positively turning said member in the opposite direction to cause it to release the thread.

1. The combination of a supporting structure,'a pivotally mounted member thereon;

2. The combination in a thread 'measuring apparatus of two thread gripping ec-' centrics; shoes mounted to cooperate with a shoe carried by the structure adjacent the roller; means tending to turn the roller into gripping engagement with-the shoe; and means for turning the rollerto release the thread clamped against the shoe.

4. The combination of a supporting structure; a roller eccentrically mounted thereon; a shoe carried by the structure ad acent the roller; a spring operative to rotate the roller to clamp a thread against the shoe; and.

means acting to oppose the spring to cause the roller to release the thread.

5. The combination of a supporting structure; a roller eccentrically mounted thereon and provided with a shoulder; a shoe mounted on the supporting structure ad jacent the roller; a member mounted to engage said shoulder to rotate the roller away from the shoe; and a spring tending to turn the roller in opposltion to said member.

6. The comb nation of a supporting structure having a guideway; a roller ecoentriand a plunger operative in the guideway in position to engage the shoulder ofthe roller to cause it to release the thread clamped 7 against the shoe.

7; The combination of a supporting structure; two rollers eccentrically mounted thereon; two shoes respectively mounted adjacent the rollers; means acting on the rollers to cause them to clamp a thread against their respective shoes; and means for periodically turning one of the rollers to cause it to release its thread.

8. The combination of a supporting structure; two rollers eccentrically mounted thereon ;two shoes respectively mounted adjacent, the rollers; means acting on the rollers to cause them to clamp a thread against their respective shoes; means for periodically turning one of the rollers to cause it to release its thread; with a manual releasing device operative on the latter roller;

9. The combination of a supporting structure; two thread clamping eccentrics; shoes mounted on said structure in positions to cooperate with the eccentrics respectively to prevent a thread being drawn from between them; and means for causing .one of said eccentrics to release the thread.

10. The combination in a supporting structure; two rollers eccentrically mounted thereon; shoes'respectively mounted on the structure in position to cooperate with the rollers; springs operative to normally turn the rollers into positions to clamp a thread against their respective shoes; a projection on one. of the rollers; and a lever operative on the projection to turn the roller in opposition to its spring. 7 V

11.: The combination of a supporting structure; a roller eccentrically mounted thereon; a shoe adjacent the roller; a spring operative on the roller to turn it into clamping engagement with the shoe; a pin projecting from the roller; a lever fulcrumed on the supporting structure in position to v scones A. soHIoK. 

